---
title: Human in the Loop (HITL)
icon: "lucide/User"
description: Allow your agent and users to collaborate on complex tasks.
---
import { CTACards } from "@/components/react/cta-cards"
import { IntegrationsGrid } from "@/components/react/integrations"

<video src="https://cdn.copilotkit.ai/docs/copilotkit/images/langgraph/human-in-the-loop-example.mp4" className="rounded-lg shadow-xl" loop playsInline controls autoPlay muted />

<Callout>
  This video shows an example of our [AI Travel App](/langgraph/tutorials/ai-travel-app) using HITL to get user feedback.
</Callout>

## What is Human-in-the-Loop (HITL)?

Human-in-the-loop (HITL) allows agents to request human input or approval during execution, making AI systems more reliable and trustworthy. This pattern is essential when building AI applications that need to handle complex decisions or actions that require human judgment.

<Frame className="my-0">
    <img src="https://cdn.copilotkit.ai/docs/copilotkit/images/coagents/coagents-hitl-infographic.png" alt="Agentic Copilot Human in the Loop" className="mt-4 mb-0 shadow-md" />
</Frame>

## When should I use this?

HITL combines the efficiency of AI with human judgment, creating a system that's both powerful and reliable. The key advantages include:

- **Quality Control**: Human oversight at critical decision points
- **Edge Cases**: Graceful handling of low-confidence situations
- **Expert Input**: Leverage human expertise when needed
- **Reliability**: More robust system for real-world use

<Callout title="Ready to Implement Human in the Loop?">
Human in the Loop can be implemented with any integration.

**Choose your integration to see specific implementation guides and examples.** 
<IntegrationsGrid targetPage="human-in-the-loop" />
</Callout>
